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Auroral Chorus II: The Music of the Magnetosphere

by: Stephen P. McGreevy

Publication date: 2000

Usage: Public Domain

Topics: Auroral Chorus, VLF, natural radio, magnetosphere

Item Size: 4.6G

This album is a wonderful collection of Earth's ELF-VLF / audio-frequency "Natural Radio" signals of Earth's Magnetosphere. "The Music of the Magnetosphere." Several audio-file additions to the original 19 tracks pertain to all three field-recording expeditions undertaken to make the originally-selected 19 tracks (Alberta/Manitoba in 1996; Alberta 1998) including radio "DX" recordings also (including trans-Atlantic AM/MWDX recorded in western/central manitoba via a 400 meter long north-east pointed wire, etc.). Long samples of events recorded and used to create the original 19 tracks are also herein.

(The original 19-high-quality tracks of the audio-CD release in the year 2000 are here now as of 03 August 2018):

https://archive.org/details/Auroral_Chorus_2_The_Original_Tracks

-----

It was a real thrill and luck to have captured many of the beautiful natural radio emissions presented here on the Auroral Chorus II album as recorded during the solar-minimum year of 1996 and as the new Cycle 23 rose-up in 1998 in Alberta and Manitoba, Canada.

This Auroral Chorus II album, originally released as 1040 CD copies in the Millennium year of 2000 (as a single 52 minute CD set), and this self-created and mastered album follows up the wildly successful double-CD set Irdial-Discs' "Electric Enigma" released in London, UK, in 1996 - Please see: https://archive.org/details/ird062

However, in addition to the track-descriptions available with the CD-version of Auroral Chorus II, this Internet Archive online-version contains a PDF-book with more elaborate explanations of the phenomena, photos of the various 1996 to 1998 recording expeditions undertaken, and additional audio-files made from the source archive cassette tapes and also many files not even related much to the original CD-release but they present a bit of the acoustic and radio field-recordings I enjoy doing.

I also have included herein a few other PDF booklets and image-files of how you can listen to these signals, too.

Most of these ELF-VLF emissions are in solar-minimum decline in the strengths and amounts in 2018/9 (but good days persist!) compared to the solar-maximum period years of 1989-1992 and 1998-2002 (very evident in October 2017 and 2018 here in the northern Mojave Desert within the ideal whistler listening geomagnetic latitudes of L1.5 to L3 here; and at higher geomagnetic latitudes including the L4 to L5 prime regions near and within the auroral oval - ideal locations to capture the glory of Earth's magnetospheric emissions as has been my quest for decades.)

The good news is that these lovely emissions are still ongoing somewhat--I have heard some marvelous strong-whistler events evening to mid-morning during periods when the Solar-Wind-stream is impacting Earth's magnetosphere at higher velocities above 600 km/second-these are initiated by coronal-holes on the Sun that will prevail during the solar-minimum years of 2018-2022. Good events will (especially at high geo-magnetic latitudes in northern Europe/Iceland/northern North America/southern New Zealand and the Antarctic Peninsula) during substantial space-weather events, particularly during the equinoctal periods twice yearly, such as coronal-hole initiated fast solar-wind streams in late 2017 and into 2018 as we near solar-minimum by 2020.

Although aurorae and associated ELF-VLF phenomena are far-less now than during the higher solar-maximum and minimum cycles (maximums during 1989-91; 1999-2002; and the still amazing solar-minimum epoch of 1995 to 1997).

Natural Radio listeners during 2017 and early 2018 have been capturing nice emissions in the UK/Europe and in the central US High Plains, on a few occasions.

(I love the MW/AM band frequency of 738 to 740 kHz the very best, so included herein are some of my best 738 and 740 kHz DX from global locations 70s to 2013...)

---

You can also download "Auroral Chorus III: The Music of the Magnetosphere" limited-release double-CD set on Internet Archive - Parts 1 and 2.

Auroral Chorus IV: Desert Whistlers, Trains, and Loma Prieta Earthquake audio archive from October 1989: I have uploaded (on 29 Sept. 2010) a NEW Album here at IA.

---
In February 2014: I began uploading audio-file copies of some of my tape-cassette archives of the three natural VLF radio recording expeditions undertaken that pertain to this album (i.e. all of the 20 Tracks of Auroral Chorus II have been made from recordings made during these particular three expeditions done in June and August 1996 as well as June 1998, the latter just enough northward to Waterton Park, Alberta - one of the most favorite of Canadian National Parks I have loved to camp in).

I support Internet Archives with big donations for this great privilege to present these fascinating natural-radio emissions of Earth.

Stephen McGreevy (N6NKS) - November 2017 (update)

* * * * *

2017-2018 Additions/Updates: As I love to do, I "pepper" all of my online-albums in Internet Archives with a lot of content mixed in from other albums as "samplers" of my other recording efforts undertaken. Not all content herein is even *remotely related* to the original "Auroral Chorus II" CD release back in the years of 2000 and 2001, but they tell of my other album work - acoustic and radio-related field-recordings! And a bit of music, too.

Enjoy and be enlightened and knowledgeable - "The Spice of Life." SpM

Notes

Natural VLF Radio recordings + public-domain = The Music of the Magnetosphere (www.auroralchorus.com)

Addeddate: 2010-03-14 18:35:18

External_metadata_update: 2019-06-30T12:49:13Z

Identifier: auroral_chorus_2_cd

Ocr: ABBYY FineReader 11.0 (Extended OCR)

Ppi: 600

Run time: 52 min. + extras

Source: cassette-tapes (ADD)

Taped by: Stephen P. McGreevy

Year: 2000

plus-circle Add Review

comment
Reviews

Reviewer: Dirk D. Anderson - - June 6, 2013
Subject: Auroral Chorus: The Music of the Magneosphere

No doubt about it Radio has got to be about the strangest hobby, not to mention the "participants" it seems to attract.
Nonetheless, fascinating, educational, and beautifull. I first heard these recordings about ten years ago.
Mr S.P. McGreevy is to be commended for his unselfish furthering of the Radio Arts...he has motivated,and inspired countless others.
In this age of "Tech Gadgets" and this obnoxious cell phone chorus imposed upon one in every language imaginable, in the public square it is refreshing to listen to something as unique and beautifull as this.
Other possible topics of Radio interest could in include: "Numbers Stations" (Yes, the damn things are real, I've listened to tons of them, Nasa's project "Jove" and "Inspire" and finally: the Air Force Global Communications system (Remotely controlled from Andrews AFB). Yes that's real to, I've heard it many times on the listed "Public Frequencies" Go Figure!
Since getting into this hobby, I'll never be the same! However, yes I will reniew my Amateur Operators License.

Reviewer: Banyek - - June 1, 2010
Subject: Thanks

The stereo recordings are especially interesting, though this is not meant to mean that Auroral Chorus II is better than Electric Enigma.
We are thankful for these beautiful recordings Mr. McGreevy! Also, that you share them with us for free. You have introduced VLF phenomena for the generations in the 21st Century. Wishing you the best from Hungary!

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